Parsec

From Xeriar
Jump to navigationJump to search

A parsec is about 3.26163626 light-years, or a bit over thirty trillion kilometers. It represents a parallax of one arcsecond, as seen from the orbit of Earth. It is used over light-year because the definition of 'year' has become increasingly convoluted.


Solar Storms Logo.jpg
Solar StormsAboutCreditsQuestionsResourcesGlossaryUpdatesWebsite